agriculture MCQs – Page 138

Practise multiple-choice questions from agriculture for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

agriculture Mcqs

1. soil science 2. agronomy 3. entomology 4. water management 5. horticulture 6. agricultural economics 7. plant pathology 8. food technology 9. animal husbandry 10. plant breeding and genetics

2741. What percentage of land is cultivable in the world?
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A. 11%

B. 12%

C. 10%

D. None of these

2742. __________ is gram-positive?
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A. Xanthomonas

B. Corynebacterium

C. Erwinia

D. Pseudomonas

2743. Sprinkler irrigation is suitable, where soil has:_________?
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A. Clayey texture

B. Loamy texture

C. Undulating topography

D. All of these

2744. These crops are planted in winter from October to December and harvested in summer from March to May is called______?
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A. Relay crops

B. Rabi crops

C. All of these

D. Kharif crops

2745. Plants which grow on sandy soils:_________?
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A. Chasmophytes

B. None of these

C. Lithophytes

D. Psammophytes

2746. The soil quality is always deteriorated by:_________?
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A. Erosion & pollution

B. Nutrient mining

C. Waterlogging & salinization

D. All of these

2747. The solid wastes generated in Pakistan are about: ___________?
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A. 65, 772 tonnes/day

B. 47,920 tonnes/day

C. 12250 tonnes/day

D. All of the above

2748. __________________ systems play a crucial role in increasing soil organic C storage and reducing net emissions of greenhouse gases in addition to soil erosion control:
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A. Engineering

B. Agroforestry

C. Cultivating

D. All of the above

2749. Pakistan has three storage reservoirs, tarbela, chashma & Mangla and __________ barrages:
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A. 16

B. 19

C. 17

D. 18

2750. Azotobacter fixes atmospheric nitrogen in the soil by:__________?
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A. Symbiotically

B. Can fix A & B

C. Non-symbiotically

D. None of these

2751. Natural water as pH equal to________________?
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A. 4

B. 1

C. 7

D. 9

2752. In land capability classification, class I-Iv are suitable for:_________?
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A. Suitable for cultivated farming

B. Suitable for grazing

C. Suitable for forestry

D. Unsuitable for any agricultural use

2753. Which nutrients are immobile in plants?
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A. Ca only

B. B only

C. P only

D. Both Ca & B

2754. In line x tester cross mating is done between:
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A. Males & females

B. All of these

C. Among males

D. Among females

2755. Soil order Vertisol is related to:_________?
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A. Black soils

B. River soils

C. Marine deposits

D. Both B & c

2756. Line x tester analysis provides information about:________?
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A. All of these

B. GCA & SCA effects

C. D & H components

D. GCA & SCA variances

2757. The soil texture refers to the relative proportion of sand,__________ and clay:
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A. Stone

B. Silt

C. Soil

D. Rock

2758. Availability of Phosphorus is maximum at:__________?
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A. Alkaline

B. None of these

C. Neutral

D. Acidic

2759. New soils, no or little profile development:
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A. Aridisols

B. Andisols

C. Entisols

D. Inceptisols

2760. Any tillage and planting system that maintains at least 30% of the soil surface covered by residue after planting for the purpose of reducing soil erosion by water:
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A. Deep Tillage

B. Conservation Tillage

C. Both a & b

D. None of these

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